diff --git a/configure b/configure
index fa4469cfb..8eb62a8ed 100755
--- a/configure
+++ b/configure
@@ -684,6 +684,7 @@ NROFFPROG
 MANDOCPROG
 TRPROG
 UNAMEPROG
+SHA1SUM
 LT_SYS_LIBRARY_PATH
 OTOOL64
 OTOOL
@@ -16785,6 +16786,52 @@ fi
 NOEXECFILE="sudo_noexec.so"
 NOEXECDIR="`echo $noexec_file|sed -e 's:^${\([^}]*\)}:$(\1):' -e 's:^\(.*\)/[^/]*:\1:'`"
 
+# Extract the first word of "sha1sum", so it can be a program name with args.
+set dummy sha1sum; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_SHA1SUM+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $SHA1SUM in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_SHA1SUM="$SHA1SUM" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_SHA1SUM="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_path_SHA1SUM" && ac_cv_path_SHA1SUM="openssl dgst -sha1"
+  ;;
+esac
+fi
+SHA1SUM=$ac_cv_path_SHA1SUM
+if test -n "$SHA1SUM"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $SHA1SUM" >&5
+printf "%s\n" "$SHA1SUM" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
 # Extract the first word of "uname", so it can be a program name with args.
 set dummy uname; ac_word=$2
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
diff --git a/configure.ac b/configure.ac
index 4744b83fe..b56bd24b4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1714,6 +1714,7 @@ NOEXECDIR="`echo $noexec_file|sed -e 's:^${\([[^}]]*\)}:$(\1):' -e 's:^\(.*\)/[[
 dnl
 dnl Find programs we use
 dnl
+AC_PATH_PROG(SHA1SUM, [sha1sum], [openssl dgst -sha1])
 AC_PATH_PROG(UNAMEPROG, [uname], [uname])
 AC_PATH_PROG(TRPROG, [tr], [tr])
 AC_PATH_PROG(MANDOCPROG, [mandoc], [mandoc])
diff --git a/lib/iolog/Makefile.in b/lib/iolog/Makefile.in
index cf49a0899..f722ae1c7 100644
--- a/lib/iolog/Makefile.in
+++ b/lib/iolog/Makefile.in
@@ -34,6 +34,8 @@ cross_compiling = @CROSS_COMPILING@
 # Compiler & tools to use
 CC = @CC@
 LIBTOOL = @LIBTOOL@
+SHA1SUM = @SHA1SUM@
+SED = @SED@
 
 # Libraries
 LT_LIBS = $(top_builddir)/lib/eventlog/libsudo_eventlog.la \
@@ -188,7 +190,7 @@ fuzz_iolog_json_seed_corpus.zip:
 	tdir=fuzz_iolog_json.$$$$; \
 	mkdir $$tdir; \
 	for f in $(FUZZ_IOLOG_JSON_CORPUS); do \
-	    cp $$f $$tdir/`sha1sum $$f | cut -d' ' -f1`; \
+	    cp $$f $$tdir/`$(SHA1SUM) $$f | $(SED) -e 's/^.*= *//' -e 's/ .*//'`; \
 	done; \
 	zip -j $@ $$tdir/*; \
 	rm -rf $$tdir
@@ -214,7 +216,7 @@ fuzz_iolog_legacy_seed_corpus.zip:
 	tdir=fuzz_iolog_legacy.$$$$; \
 	mkdir $$tdir; \
 	for f in $(FUZZ_IOLOG_LEGACY_CORPUS); do \
-	    cp $$f $$tdir/`sha1sum $$f | cut -d' ' -f1`; \
+	    cp $$f $$tdir/`$(SHA1SUM) $$f | $(SED) -e 's/^.*= *//' -e 's/ .*//'`; \
 	done; \
 	zip -j $@ $$tdir/*; \
 	rm -rf $$tdir
@@ -240,7 +242,7 @@ fuzz_iolog_timing_seed_corpus.zip:
 	tdir=fuzz_iolog_timing.$$$$; \
 	mkdir $$tdir; \
 	for f in $(FUZZ_IOLOG_TIMING_CORPUS); do \
-	    cp $$f $$tdir/`sha1sum $$f | cut -d' ' -f1`; \
+	    cp $$f $$tdir/`$(SHA1SUM) $$f | $(SED) -e 's/^.*= *//' -e 's/ .*//'`; \
 	done; \
 	zip -j $@ $$tdir/*; \
 	rm -rf $$tdir
diff --git a/lib/util/Makefile.in b/lib/util/Makefile.in
index 16dac03e2..5b6bee42a 100644
--- a/lib/util/Makefile.in
+++ b/lib/util/Makefile.in
@@ -54,6 +54,7 @@ HOSTCC = @CC_FOR_BUILD@
 CPP = @CPP@
 HOSTCPP = @CPP_FOR_BUILD@
 LIBTOOL = @LIBTOOL@
+SHA1SUM = @SHA1SUM@
 SED = @SED@
 AWK = @AWK@
 
@@ -318,7 +319,7 @@ fuzz_sudo_conf_seed_corpus.zip:
 	tdir=fuzz_sudo_conf.$$$$; \
 	mkdir $$tdir; \
 	for f in $(FUZZ_SUDO_CONF_CORPUS); do \
-	    cp $$f $$tdir/`sha1sum $$f | cut -d' ' -f1`; \
+	    cp $$f $$tdir/`$(SHA1SUM) $$f | $(SED) -e 's/^.*= *//' -e 's/ .*//'`; \
 	done; \
 	zip -j $@ $$tdir/*; \
 	rm -rf $$tdir
diff --git a/logsrvd/Makefile.in b/logsrvd/Makefile.in
index 171da3341..e9ac8cbd6 100644
--- a/logsrvd/Makefile.in
+++ b/logsrvd/Makefile.in
@@ -35,6 +35,7 @@ cross_compiling = @CROSS_COMPILING@
 # Compiler & tools to use
 CC = @CC@
 LIBTOOL = @LIBTOOL@
+SHA1SUM = @SHA1SUM@
 SED = @SED@
 
 # Our install program supports extra flags...
@@ -174,7 +175,7 @@ fuzz_logsrvd_conf_seed_corpus.zip:
 	tdir=fuzz_logsrvd_conf.$$$$; \
 	mkdir $$tdir; \
 	for f in $(FUZZ_LOGSRVD_CONF_CORPUS); do \
-	    cp $$f $$tdir/`sha1sum $$f | cut -d' ' -f1`; \
+	    cp $$f $$tdir/`$(SHA1SUM) $$f | $(SED) -e 's/^.*= *//' -e 's/ .*//'`; \
 	done; \
 	zip -j $@ $$tdir/*; \
 	rm -rf $$tdir
diff --git a/plugins/sudoers/Makefile.in b/plugins/sudoers/Makefile.in
index 59eb7602b..046a5928c 100644
--- a/plugins/sudoers/Makefile.in
+++ b/plugins/sudoers/Makefile.in
@@ -44,6 +44,7 @@ cross_compiling = @CROSS_COMPILING@
 # Compiler & tools to use
 CC = @CC@
 LIBTOOL = @LIBTOOL@
+SHA1SUM = @SHA1SUM@
 FLEX = @FLEX@
 YACC = @YACC@
 SED = @SED@
@@ -407,7 +408,7 @@ fuzz_policy_seed_corpus.zip:
 	tdir=fuzz_policy.$$$$; \
 	mkdir $$tdir; \
 	for f in $(FUZZ_POLICY_CORPUS); do \
-	    cp $$f $$tdir/`sha1sum $$f | cut -d' ' -f1`; \
+	    cp $$f $$tdir/`$(SHA1SUM) $$f | $(SED) -e 's/^.*= *//' -e 's/ .*//'`; \
 	done; \
 	zip -j $@ $$tdir/*; \
 	rm -rf $$tdir
@@ -433,7 +434,7 @@ fuzz_sudoers_seed_corpus.zip:
 	tdir=fuzz_sudoers.$$$$; \
 	mkdir $$tdir; \
 	for f in $(FUZZ_SUDOERS_CORPUS); do \
-	    cp $$f $$tdir/`sha1sum $$f | cut -d' ' -f1`; \
+	    cp $$f $$tdir/`$(SHA1SUM) $$f | $(SED) -e 's/^.*= *//' -e 's/ .*//'`; \
 	done; \
 	zip -j $@ $$tdir/*; \
 	rm -rf $$tdir
@@ -459,7 +460,7 @@ fuzz_sudoers_ldif_seed_corpus.zip:
 	tdir=fuzz_sudoers_ldif.$$$$; \
 	mkdir $$tdir; \
 	for f in $(FUZZ_SUDOERS_LDIF_CORPUS); do \
-	    cp $$f $$tdir/`sha1sum $$f | cut -d' ' -f1`; \
+	    cp $$f $$tdir/`$(SHA1SUM) $$f | $(SED) -e 's/^.*= *//' -e 's/ .*//'`; \
 	done; \
 	zip -j $@ $$tdir/*; \
 	rm -rf $$tdir